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====== Re: [N8VEM: 16054] Formatting floppydisks ? help needed ======

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  * //To//: <n8vem@googlegroups.com>
  * //Subject//: Re: [N8VEM: 16054] Formatting floppydisks ? help needed
  * //From//: John Coffman <<john...@gmail.com>>
  * //Date//: Mon, 22 Jul 2013 17:02:39 -0700
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  * //In-reply-to//: <[[msg00038.html|7BE0DF01-8A63-4C78-B02E-9D5761C8D988@mac.com]]>
  * //References//: <[[msg00049.html|6a44c0fd-2270-4eba-bbd2-53e7b64ef659@googlegroups.com]]> <[[msg00051.html|51DE22DB.3010802@mac.com]]> <[[msg00042.html|ea183b93-3313-4362-8cff-864b80713843@googlegroups.com]]> <[[msg00038.html|7BE0DF01-8A63-4C78-B02E-9D5761C8D988@mac.com]]>
  * //Reply-to//: John Coffman <<john...@gmail.com>>
  * //User-agent//: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.2.24) Gecko/20111108 Fedora/3.1.16-1.fc14 Thunderbird/3.1.16

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|Instead of 150ohm resistors, I have used 220ohm resistors on the following:\\ \\         DiskIO v1        chipset:  i8272 + FDC9229BT\\         SBC-188          chipset:  WDC37C65BJM\\ \\ The main reason for changing the value was that I could not readily find 150ohm SIPs.  220ohm SIPs are easy to find.\\ \\ --John\\ \\ \\ \\ \\ \\ On 07/22/2013 04:36 PM, Douglas Goodall wrote:\\ \\ <blockquote>\\ Frank,\\ \\ \\ \\ I don't have experience with the ECB based floppy interfaces so I cannot answer authoritatively\\ \\ about your resistor network. Wayne might be a better person to ask.\\ \\ \\ \\ I will forward this to him as well…\\ \\ \\ \\ Douglas\\ \\ \\ \\ \\ \\ On Jul 22, 2013, at 2:16 PM, Frank Rasmussen <<frankra...@gmail.com>> wrote:\\ \\ \\ \\ <blockquote>\\ Hi Douglas\\ \\  \\ \\ Thanks for the info, I just made a new eprom image with the fdtst program on, but still no luck.\\ \\  \\ \\ What happens is this , I start the fdtst program , use the setup to select the right device and the right conf for that device, it is a 3½" PC floppydrive, 1,44 MB and the diskette is also 1,44 MB - brandnew.\\ \\  \\ \\ Then I select to format - select disk and Yes , and of it goes - the drive spins and the head is moving and on the screen i can see the numbers increase as expected, it finishes - nothing indicates that anything is wrong. Then I do a verify - first track , first side (0) and first sector it writes that the data is wrong - not as expected.\\ \\  \\ \\ The same happens if I choose just a single track or a single sector and it happens on all my drives - also 51/4" 1,2 MB , the drives Works fine in a pc and also the diskettes, and with the same cable - I have tried both a twisted and a not twisted cable - same problem.\\ \\  \\ \\ IDE part Works fine on both SF Cards and real HD's\\ \\  \\ \\ I have choosen a 1 K as the resistor-Network , could it be that it should be 150 Ohm's instead ?\\ \\  \\ \\  \\ \\ best regards\\ \\ Frank\\ \\  \\ \\  \\ \\  \\ \\  \\ \\  \\ \\  \\ \\  \\ \\  \\ \\  \\ \\  \\ \\  \\ \\  \\ \\ \\ Den torsdag den 11. juli 2013 05.13.31 UTC+2 skrev douglas_goodall:\\ \\ > Frank,\\ \\ Multifmt is just for the hard drives, SD and CF.\\ \\ Sysgen will put a system image on a floppy for you.\\ \\ I use the fdtst program to do the low level format on the floppy,\\ then sysgen to put the OS where it needs to go. Once you do that\\ the floppy will be bootable.\\ \\ Best of luck,\\ \\ Douglas Goodall\\ \\ \\ \\ On 7/10/2013 11:48 AM, Frank Rasmussen wrote:\\ > Hi all\\ >\\ > I just finished Building my SBC-V2 computer, cassetteinterface, ColorVDU, DiskIO3 and ofcourse the CPU SBC-V2 Z80 board.\\ >\\ > I have build an EPROM ROMWBW, that supports the boards and selected the CP/M version.\\ >\\ > During boot it writes all the right things, so it looks good, I got video on , the seriel port Works fine, and i can format a harddrive , more partitions and I can access the floppydrives - that is : when i do a dir c: or d: the light in the floppy drive lights up and it spins the drive, BUT - I can't format the floppydisks.\\ >\\ > I tried the multifmt program, it gives me the option to select 0-1 , 0-1, Y/n , D/n , no matter what i do it just returns my B: prompt, CLRDIR program accesses the drives and moves the head in steps but reports DATA ERROR.\\ >\\ > I then copied a CP/M 2.2 format program to the eprom image, it starts and then ask me if I want to format disk in c: Y/n , I choose Y and then nothing more happens - I can then only press the reset button.\\ >\\ >\\ > Any good suggestions of what to do, or what am I doing wrong - how is multifmt supposed to be used ? , I used that to format the harddrive and that worked fine.\\ >\\ >\\ >\\ >\\ > Best regards\\ > Frank\\ >\\ \\ \\ \\ \\ --\\ You received this message because you are subscribed to the Google Groups "N8VEM" group.\\ To unsubscribe from this group and stop receiving emails from it, send an email to <n8vem+un...@googlegroups.com>.\\ To post to this group, send email to <n8...@googlegroups.com>.\\ Visit this group at http://groups.google.com/group/n8vem.\\ For more options, visit https://groups.google.com/groups/opt_out.\\  \\  \\ </blockquote>\\ \\ \\ \\ --\\ You received this message because you are subscribed to the Google Groups "N8VEM" group.\\ To unsubscribe from this group and stop receiving emails from it, send an email to <n8vem+un...@googlegroups.com>.\\ To post to this group, send email to <n8...@googlegroups.com>.\\ Visit this group at http://groups.google.com/group/n8vem.\\ For more options, visit https://groups.google.com/groups/opt_out.\\  \\  </blockquote>|

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  * **References**:
    * **[[msg00049.html|Formatting floppydisks ? help needed]]**
      * //From:// Frank Rasmussen <frankra...@gmail.com>
    * **[[msg00051.html|Re: [N8VEM: 16031] Formatting floppydisks ? help needed]]**
      * //From:// Douglas Goodall <douglas...@mac.com>
    * **[[msg00042.html|Re: [N8VEM: 16031] Formatting floppydisks ? help needed]]**
      * //From:// Frank Rasmussen <frankra...@gmail.com>
    * **[[msg00038.html|Re: [N8VEM: 16054] Formatting floppydisks ? help needed]]**
      * //From:// Douglas Goodall <douglas...@mac.com>

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